Hi.

I use the Logitech cordless MouseMan Wheel.

-   Protocol    "Wsmouse"
    Device      "/dev/wsmouse0"

    This works, but the left button is not available.

-   Protocol    "Logitech"
    Protocol    "MouseMan"
    Protocol    "Microsoft"

    The cursor jumps all over the place.

Serveral FAQs, the XF86Config file and much more were consulted.
Unfortunately without any result.

Which XF86Config options apply to this hardware?

# dmesg
[...]
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pmsi0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pmsi0 mux 0
[...]

TIA

-- 
Cu  Georges Heinesch, Luxembourg
    geohei@geohei.lu
    http://www.geohei.lu
    PGP RSA & DH/DSS public key on request and on public servers

... better do a good thing today, than a perfect thing tomorrow ...